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Test your basic knowledge |
Dairy Cattle And Reproduction
Start Test
Study First
Subjects
:
industries
,
dairy
Instructions:
Answer 50 questions in 15 minutes.
If you are not ready to take this test, you can
study here
.
Match each statement with the correct term.
Don't refresh. All questions and answers are randomly picked and ordered every time you load a test.
This is a study tool. The 3 wrong answers for each question are randomly chosen from answers to other questions. So, you might find at times the answers obvious, but you will see it re-enforces your understanding as you take the test each time.
1. To remove/separate testicles from animal's body before animal reaches puberty
1. more cost effective - 2. powdered milk is in excess production
retractor muscles
cremaster muscle
castration
2. Help to signal hormone levels which we need both in the brain right next to each other.
Parturition
hypothalamus and pituitary gland
Hard
mare estrus
3. % of fat in milk. makes cheeses and ice cream. regulates cost of milk
monorchid
cremaster muscle
butterfat
vagina
4. Urinary calculi.
humans: stress level vs sperm
why does the cow need fat deposits during pregnancy?
scrotal circumference (BSE)
kidney stones also called ________ ___________ can develop in the sigmoid flexure
5. (male) pushes the testes outward toward the legs for a cool-down off of the body
cremaster muscle
Hormones from both the fetus and the mom.
ewe estrus
penis and prepuce observation (BSE)
6. Check feet and legs - look for masculine traits in build such as crest and muscling
why does the cow need fat deposits during pregnancy?
mastitis
visual evaluation (BSE)
Holstein Cow
7. 10-37 (21) days
prostaglandin
effects of estrogen
burdizzo
mare estrus cycle
8. 30-38 hours after estrus cycle begins
sow ovulation
age and castration
sertoli cells
mastitis
9. Milk is 15% ________ and 85% __________.
dry matter and water
estrous
age and castration
what has to happen for males for copulation to occur
10. Animals which have only one estrous cycle (ex: dog - fox)
what has to happen for males for copulation to occur
van deferens
stag
monestrous
11. Cleans and lubricates the urethra. secretion is thick - viscous - and very slippery.
12. 1-2 days
purpose of Breeding Soundness Exam (BSE) for males
Jersey Cow
ewe estrus
seasonally polyestrous
13. 10-37 (21) days
pelvis
cow ovulation
organs used in spermatogenesis
mare estrus cycle
14. Pulls sperm and egg together - gets body ready for pregnany - stimulates growth cells - develops mammary glands - starts to deposit fat.
cow estrus cycle
hormones
effects of estrogen
hypothalamus and pituitary gland
15. Days which have increasing daylight hours
16. 1. bring in new genes - 2. replace males with leg problems (difficulty breeding) Note: culling has a much greater emphasis in the dairy industry vs the beef industry.
feeding a high producing dairy cow
Culls bulls earlier (2 reasons)
sow estrus cycle
effects of BST
17. Start of the reproductive tract for the female. located outside of the body
libido test (BSE)
vulva
sow gestation
mare gestation
18. Failure to have both testis (gonads) descend
cryptorchid
sow ovulation
cervix
van deferens
19. 1-2 days
mare ovulation
cow estrus
behavioral signs of estrus
ewe estrus
20. 1. reproduction - 2. mastitis/udder problems - 3. low milk production - 4. soundness/poor feet and legs (living on concrete)
cow gestation
4 major reasons for culling dairy cows
accessory sex glands
Culls bulls earlier (2 reasons)
21. 14-19 (17) days
spermatogenesis
ewe estrus cycle
Size of cow in relation to the amount of milk produced
Lutinizing Hormone in females
22. Actual heat cycle (period)
estrus
monestrous
Hard
accessory sex glands
23. Cleans and lubricates the urethra. secretion is thick - viscous - and very slippery.
24. 336 days
penis and prepuce observation (BSE)
mare gestation
dairy cattle pregnancy check
semen evaluation (BSE)
25. Knife-loose ~1wk of growth. band-loose ~2wks of growth.
estrous
sperm cell
sertoli cells
growth lost from castration methods (knife & band)
26. (LH) causes female's egg to break (her period)
age and castration
reasons for castration
Lutinizing Hormone in females
polyestrous
27. 2 month growth cycle. stored in the epididymis of the bull
organs used in spermatogenesis
Testicles will produce testosterone but not sperm. Bull will attempt to mate - but will be sterile
Sperm growth rate
Parturition
28. Supply nutrients for the sperm following ejaculation and deposition into the female reproductive tract
humans: stress level vs sperm
mastitis
eminal vesicles
Lutinizing Hormone in males
29. Knife-loose ~1wk of growth. band-loose ~2wks of growth.
Bull's fibro-elastic penis
leydid or interstitial cells
growth lost from castration methods (knife & band)
scrotal circumference (BSE)
30. 1. to eliminate breeding the females at an early age - 2. makes animals less lean and provides a better cut for the market
estrous
Dairy Cattle Lactation (standard)
cervix
reasons for castration
31. Failure to have one testis (gonad) to descend
monorchid
~1 month
stag
Jersey Cow
32. 283 days
cow gestation
retractor muscles
cow estrus cycle
accessory sex glands
33. 1. brain function - 2. blood flow - 3. willing female
functions of progestrone
mastitis
what has to happen for males for copulation to occur
Lutinizing Hormone in females
34. Days which have decreasing daylight hours
35. Way to know everything is alright with the breeding male
purpose of Breeding Soundness Exam (BSE) for males
Dairy Cattle milking schedule
van deferens
estrus
36. The more stressed out the male is - the less sperm he is going to produce
sigmoid flexure
humans: stress level vs sperm
organs used in spermatogenesis
sertoli cells
37. Not under a timeline - cow can not be sold as steak
Brown Swiss Cow
cremaster muscle
functions of progestrone
Grading choice
38. 26 hours after estrus begins
ewe ovulation
leydid or interstitial cells
retractor muscles
epididymis: definition - 3 parts - 4 functions
39. Not being bred back into herd. horses are seasonal breeders vs. cows as anytime breeders
seasonally polyestrous
oviducts
dry matter and water
Mares
40. Milk is 15% ________ and 85% __________.
ewe estrus cycle
effects of estrogen
dry matter and water
cow estrus cycle
41. (switzerland) 2nd in size and milk production - most muscle -
Brown Swiss Cow
Dairy Cattle milking schedule
dry matter and water
castration
42. Animals which have many estrous periods per year (ex: cow - sow)
dry matter and water
castration
Blood
polyestrous
43. What makes the milk flow through the mammary glands?
Dairy Cattle Gestation
Blood
seminiferous tubules
libido test (BSE)
44. 1. sperm is not implanted in egg until hours after breeding. 2. fetal growth has not yet finished.
Sperm survival specs
Reasons for gestation length being affected
Lutinizing Hormone in males
4 major reasons for culling dairy cows
45. Important 'landmark' during palpation
femininity of a heifer
Dairy Cattle Lactation (standard)
cowper's gland
cervix
46. Way to know everything is alright with the breeding male
cervix
epididymis: definition - 3 parts - 4 functions
Lutinizing Hormone in males
purpose of Breeding Soundness Exam (BSE) for males
47. Hold the penis in the bulls body when not in use. releases penis before ejaculation or urination.
Dairy Cattle Gestation
Brown Swiss Cow
Holstein Cow
retractor muscles
48. 24 hours before end of estrus cycle
mare ovulation
Brown Swiss Cow
feeding a high producing dairy cow
testosterone
49. Front feet and head first. (except for hogs and dogs)
ewe's estrous cycle
sow estrus
hypothalamus and pituitary gland
normal presentation of the fetus
50. Supply nutrients for the sperm following ejaculation and deposition into the female reproductive tract
you want as much sperm as possible to come in contact with the egg before ovulation. the main idea is to have the sperm already in the oviduct when the egg passes through
dairy cattle pregnancy check
eminal vesicles
Lutinizing Hormone in males